Feed-roll mechanism for veneer and shingle machines



Nov. 4, 1930. J. E. ECKERSLE'Y' FEED ROLL MECHANISM FOR VENEER AND SHINGLE IACHINES Filed Aug. 20. 1929 Patented Nov. 4, 1930 y VANDERPOLSON, or HOQUIAM, wnsnr ve'ron i rEnn-Ronn-MEcIiANIsM ron vnnnnnnivnsrrmelinM o inEs Q n amon filedi August 20,19,23 Serial fiol'gflglog.'-

This inventionis an improvement on the I feed roll mechanismshown in my Patent No.

1,552,985 of September 8, 1925', vwherein the point of suspension of the pressurebars is to a the-rear of thelongitudinal axis of the feed rollers. V

Theobject of my invention is to suspend the pressure bars above and preferably in front of the longitudinal axis of the feed rollers- A further object of my invention is to providethe pressure bars with removable block engaging shoes. 7 7

A further object of my invention is to pro-- vide means forlimiting the rearward and forward movement of the pressure bars; and with these and other ob ects in view my 1n-, vention cons stsof the parts andcomb1nationof parts as will be hereinafter pointed out; i 1 a k g I I In the drawings: Figure 1 is a top plan view of the portion of a shingle veneer machine embodying my invention; v I

Figure 2 is an enlarged detail View on the of the arrows.

The reference numeral 1 designates a bed pressure bars-to ai limit'ed forward position, ;as--fI will'now 'eXplaiIif Abolt 1&1 is threaded -into the plate, 15 cast "with the yoke "and platehaving an; opening 2 therethrough through which the block of wood operated upon may be fed to the knife of themachine.

A frame 4: is mountedon the bed plate on whichis mounted the feed rolls and pressure bars as more fully described in my patent above noted, although it'is to be noted that 1* I do not confine myself in this case to the struclongitudinal axis of the feed rolls that there is some interference between the knife and the pressure bars, and one of the objects of the present invention is to-entirely eliminate this s possibility as I willnow explain. V

The feed roll yoke 4 is mounted on the bed plate 1; the feed rolls 6 are suitably journalled to the yoke 4. A series of arms 7 ex- 1 tend forwardly from the yoke 4 and terminate at their forward ends at a point above and in the drawings.

Pressure bars 8, arcuate in shape, are pivoted atthe'ir 'u'pper ends to the forward ends of the arms -7'so that their point of suspension is above and in front of the longitudinahax is v smnsscxmsmy, FABERDEEN, wnsrrliverolv, nssrenonor oN E- Hnnn'ro apexiiiflfront vertical plane of thelongitudinal axis "ofithefeed rolls 6, as clearly shown oftliegfeed rolls so that when the pressure bars aremoved backwards at'their lower ends they swingin an are that never intersects the plane ,of the knife,' thusentirely eliminating all possibility of interference between theknife' and pressure baisa' The lowerie rid" of the pressureb ars each havea recess9'into *whioh" hardened steel shoes 10 are'removabl 'jsecured in any suitable manner; said may be ireadilyreplaced when nebessary outreplaeing theentirefpressurebar.

The yoke- 4 and the pressure barseach have a stud isenwhich thefends of the springs- 13 are seated said springs18jexerting;pres-- {sure on the'p'ressure bars8; aswillberea dily ,'.:understood.- 1?

i 1 have" simplified the nieans for holding the locked in proper position by -a jam nut 16.

The forward end of the bolt 14 is'pos'itioned in an elongatedl-gslot' 17 formed in ailug 18 on the pressure bar, the head 19 oft-he-bolt' having aslid'ing engagement with one; face of the lug :18, so that the pressure bars are free'to'be moved on their-pivot. 20; and in I "order to limit the rearward movement 'of the pressure bars I mountan adjustment bolt 21 oIi' the-arms 7 to functio'n 'a' s' a positive-' s top'to limitflthe rearward 'movement of the pressure tact with the end of the'stop 21. This stop Qlfis provided with'a jam nut' 22 The pres H s'urebars are shown in their extremefrearward movement in dotted lines "and are sw'ung' to' this position by the pressure onthe sp'alts end- ,wis'e. -T-hepressu're bars inm'oving backward, as above" stated, do not interfere with the bars; the top of' the lug 18' comingint'ofcom;

knife, nor do they engage the feed rolls at any point in their movement.

The concave surface 23 on the pressure bar manufaoturer."

What I claim is: a V '1. In a machine of the kind described, a bed plate having an opening therethroughto receive a block to be operated upon, means for feeding the block through said opening,

to a cutter, spalt bars pivotally mounted above and infront of the vertical plane of a the longitudinal axis of the block feeding means.

v 2. In a machine of the kind described, a

bed plate having an opening therethrough to receive a block to be operated upon, means for feeding the block through said opening to a cutter, spalt bars pivotally mounted above and in front of the vertical plane of the longitudinal axis of the block feeding means,,

means on the yoke for limiting the forward 7 movement of said bars,-and tension means for holding the bars against the block.

3. In a machine of the kind described, a bed plate having'an opening therethrough to for feeding the block through said opening adjustable means on the arm to determine the rearward movement of the bar.

7. In a machine of the kind described, means for feeding a block to a cutter, a yoke mounted on the machine, spalt or pressure bars pivotally mounted on said yoke above and in front of the vertical plane of thelongitudinal axis of the feeding means, a pin and slot connection between the yoke and bars intermedi'ate'theendsof the bars, an adjustable means for limiting the movement ofthe bars, and tension means connected with the yoke and bars for holding the bars against a block.

In testimony whereof I afiix my signature.

JAMES E. ECKERSLEY.

'reecelve a block tobe operated upon, means a to a cutter, a yoke on said bed plate, spalt or v 7 v pressure bars pivotally connected to said yoke above and in front of the verticalplane of the longitudinal axis of the feeding means.

4. In a machine 'of the kind described, a

. bed plate having an opening therethrough to receive a block tobe operated upon, means for feeding the block through said opening to a cutter, a yoke on said bed'plate, spalt .or pressure barspivotallyconnected to said yoke above and infront of the vertical plane I of the longitudinal axis of the feeding means, means .ontheyoketo limit the movement of the bars; V V v p 5. In a machine of the kind described, a bed plate having 'an opening therethrough to receive a block to be operated upon, means for tension'means connected with the yoke-and barfor holding thebarfag'ainst the block.

-. 6. Ina machine of the kind described, a

. bed plate having an opening therethrough to receive a block to be operated upon, means for feeding theblock through said opening to a cutter, a yoke on said bed plate, spalt or pressure bars pivotally connectedto said yoke above and in front of the vertical-plane of the longitudinal axis of the feeding. means, and 

